Thies CLIMA 4.3351.00.000, Инструкция по эксплуатации

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1 Models available
Order - No. Meas. range
Output
Frequency
Supply Heating
4.3351.00.000 0.3...75 m/s 1082 Hz @ 50 m/s 3.3…48 V DC 24V AC/DC, 25 W
4.3351.10.000 0.3...75 m/s 1082 Hz @ 50 m/s 3.3…48 V DC w/o heating
The following parts are included in delivery:
1 Instrument
1 Terminal plug
1 Instruction for Use
2 Application
The wind transmitter is designed for the acquisition of the horizontal component of the wind speed
in the field of meteorology and environmental measuring technology, evaluation of location, and
measurement of capacity characteristics of wind power systems.
Special characters are defined and optimised, dynamic behaviour also at high turbulence intensity,
minimal over-speeding, and a low starting values.
The measuring value is available as digital signal at the output. It can be transmitted to display in-
struments, recording instruments, data loggers as well as to process control systems. For winter
operation the instrument is optional equipped with an electronically regulated heating, which guar-
antees a smooth running of the ball bearings, and prevents the shaft and slot from icing-up.
3 Construction and Mode of Operation
A low-inertia cup star with 3 cups, made of carbon-fibre-reinforced plastic, is set into rotation by the
wind. The rotation is scanned opto-electronically, and is converted into a square wave signal. The
frequency of this signal is proportional to the number or rotations. Depending on the supply voltage,
the output signal ranges between maximal output voltage and ground or a potential (life-zero
*
),
lifted by approx. 1.2 V. The supply of the electronics can be done by DC-voltage of 3.3 V up to 48 V
at a very low current consumption. An AC- or DC-voltage of 24 V is intended for the separate sup-
ply of the optional heating. In all probability, the heating guarantees a trouble-free function of the
Wind Transmitter First Class even under extreme meteorological icing-conditions.
The outer parts of the instrument are made of corrosion-resistant anodised aluminium. Highly effec-
tive labyrinth gaskets and O-rings protect the sensitive parts inside the instrument against humidity
and dust. The instrument is mounted onto a mast tube; the electrical plug-connection is located in
the transmitter shaft.
*
Useable at a supply voltage > 5 V DC